Storage battery



FIG. 1 is a perspective view of the top, rear and left side of a storage battery showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom view thereof. 

The ornamental design for a storage battery, as shown and described. 